S8955SS 2K servo



[Stall torque]
34.2 (6.6V)/38.3 (7.4V)/43.5 (8.4V) kg・cm
474.7 (6.6V) / 532.2 (7.4V) / 604.1 (8.4V)oz・in
[Speed] 0.06 (6.6V)/0.06 (7.4V)/0.05 (8.4V) Sec/60°
[Weight] 79 g / 2.79 in
[Dimensions] 40 x 20 x 40.5 mm / 1.38 x 0.79 x 1.59 in
[Lead length] 300mm
[Operating voltage] 4.5V – 8.5V
[Neutral frequency] 1500μSec.
[Control frequency] XBUS: 1KHz / PWM: 333Hz

■ Equipped with high output brushless motor
■ Programmable (slow start: OFF)
■ Full metal gear
■ Full metal case
■ Wide voltage
■ Double ball bearing
■ Synchro (servo synchronization)
■ Operating angle: 120°/180° (150°/can be set with XBUS SERVO PROGRAMMER)

*Servo horn is sold separately.

SKU: T0077658 Categories: ,


Servo for large airplanes HIGH SPEED

A model equipped with a brushless motor is now available in the XBus programmable full metal servo series.
By optimizing the control parameters, we have achieved even better initial response and powerful and smooth operation.
The full metal case and full metal gear fully transmit the powerful power of the brushless motor to the output.
In addition, the highly rigid metal case and metal gear eliminate distortion caused by repeated operations, contributing to the longevity of brushless servos.

About parameters
The control parameters of this product have been adjusted assuming use at 7.4V or higher.
Therefore, if you feel that the suppression is weak or the stop is difficult when used at a low voltage, please adjust the parameter values in the XBUS settings.

What is 2K servo?
Increased servo control frequency from 1kHz to 2kHz. (*Regardless of PWM connection or XBUS connection)
By doubling the control frequency, movement becomes smoother, and responsiveness, neutral holding power, and initial torque are also improved.
We have significantly reduced the occurrence of hunting and achieved a smoother operating feel.

When using other companies’ products other than JR genuine servo horns, some parts may come into contact with the upper case when tightening the servo horn screws. If you use it in that condition, it will put a load on the servo and in the worst case, it may burn out, so please check carefully before use.

Countermeasure: Insert a washer between the output gear and the servo horn.